js| Grammar <jsp:plugin>
Execute an applet or bean and, if possible, download a Java plug-in to execute it.
JSP syntax
<jsp:plugin
Type= "Bean | Applet
Code= "Classfilename"
Codebase= "Classfiledirectoryname"
[Name= "InstanceName"]
[archive= "uritoarchive, ..."]
[align= "bottom | top | middle |
[height= "Displaypixels"]
[width= "Displaypixels"]
[hspace= "Leftrightpixels"]
[vspace= "Topbottompixels"]
[jreversion= "Jreversionnumber | 1.1"]
[nspluginurl= "Urltoplugin"]
[iepluginurl= "Urltoplugin"] >
[<jsp:params>
[<jsp:param name= "parametername" value= "{parametervalue | <%= expression%>}"/>]+
</jsp:params>]
[<jsp:fallback> text message for user </jsp:fallback>]
</jsp:plugin>
Example
<jsp:plugin type=applet code= "Molecule.class" codebase= "/html" >
<jsp:params>
<jsp:param name= "molecule" value= "Molecules/benzene.mol"/>
</jsp:params>
<jsp:fallback>
<p>unable to load applet</p>
</jsp:fallback>
</jsp:plugin>
Describe
The <jsp:plugin> element is used to play or display an object in the browser (typically applets and beans), and this display needs to be in the browser's Java plugin.
When a JSP file is compiled, the,<jsp:plugin> element will be replaced with a <object> or <embed> element according to the browser version when sent to the browser. Note that,<object> is used for HTML 4.0,<embed> for HTML 3.2.
In general, the,<jsp:plugin> element specifies whether the object is an applet or a bean, and also specifies the name of the class, as well as the location, and also specifies where the Java plug-in will be downloaded. Specifically as follows:
Property
Type= "Bean | Applet
. The type of plug-in object that will be executed, you must specify whether this is a bean or an applet, because this property has no default value.
Code= "Classfilename"
The name of the Java class that will be executed by the Java plug-in, which must end with. class. This file must exist in the directory specified by the CODEBASE property.
Codebase= "Classfiledirectoryname"
The directory (or path) of the Java class file that will be executed, and if you do not provide this attribute, the directory using the <jsp:plugin> JSP file will be used.
Name= "InstanceName"
The name of this bean or applet instance, which will be invoked elsewhere in the JSP.
Archive= "uritoarchive, ..."
Some path names separated by commas that are used to preinstall some of the class that will be used, which improves the performance of the applet.
align= "Bottom | Top | Middle | Left | Right
The position of the graphic, object, applet, with the following values:
Bottom
Top
Middle
Left
Right
height= "Displaypixels" width= "Displaypixels"
The long, wide value that the applet or bean will display, which is a number, in pixels.
Hspace= "Leftrightpixels" vspace= "Topbottompixels"
The amount of space, in pixels, required to be left on or off the screen when the applet or bean is displayed.
jreversion= "Jreversionnumber | 1.1 "
The version of the Java Runtime Environment (JRE) required to run the applet or the bean. The default value is 1.1.
Nspluginurl= "Urltoplugin"
Netscape Navigator user can use the JRE download address, this value is a standard URL, such as http://www.aspcn.com/jsp
Iepluginurl= "Urltoplugin"
IE users can use the JRE download address, this value is a standard URL, such as http://www.aspcn.com/jsp
<jsp:params> [<jsp:param name= "parametername" value= "{parametervalue | <%= expression%>}"/>]+ </ Jsp:params>
The parameter or parameter value you need to pass to the applet or bean.
